Tennis racket

Details Tennis racket Tennis racket

1989-04-14

1990-10-23

Layno, Benjamin

Amusement devices: games

Aerial projectile game; game element or accessory therefor...

Target

273 73R, 273 73G, A63B 4902

Patent

active

049646354

ABSTRACT:
A tennis racket comprised of a handle connected to a frame with a wide open throat, a wide inverted bridge, and an open, tensioned string receiving, playing head. The longitudinal strings successively increase in length outward from the longitudinal axis and the transverse strings successively increase in length outward from the handle. The results of which are an increase in racket stability, an enlarged optimum spring back area, increasing in size outward toward the sides and upward toward the tip, the center of percussion located closer to the geometric center of the head, and the vibration levels on off-center hits being reduced.

REFERENCES:
patent: 4141551 (1979-02-01), Goransson
patent: 4291574 (1981-09-01), Frolow
patent: 4322076 (1982-03-01), Bertram et al.
patent: 4798382 (1989-01-01), Janes
patent: 4834383 (1989-05-01), Woehrle et al.
The Sporting Good Dealer, "Quadrangular Racket Extends Sweet Spot", p. 112, Jun. 1988.

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